Hose-coupling



N5 Model.)

'J. B. NEWMAN. Hose Coupling.

No. 239,827. Patnted April 5, 1881. i

WITNESSES c INVENTOR: /ia ao ATTORNEYS.

N.FETER5, WOTO-UTHOGRAPKER WASWNGTDPQ. C.

UNITED STATES PATENT OFFICE.

JOHN B. NEWMAN, or MILFORD, PENNSYLVANIA. ll,

HOSE-COUPLING.-

SPECIFICATION forming part of Letters were No. 239,827, dated April 5, 1881.

Application filed October8, 1880. (No model.)

To all whom it may concern Be it known that I, JOHN B. NEWMAN, of Milford, in the county of Pike and State of Pennsylvania, have invented a new and Improved Hose-Oouplin g, of which the following is a specification.

The object of this invention is to provide a more simple and readily connected and disconnected coupling for hosell The invention consists of a tubular couplingring, internally screw-threaded at one end for the connectionot' a straight section of pipe, and having a conical bore for the reception, at its opposite end, of a. taperirig-shouldered section of pipe, having also an internal annular socket containing an internally-tapering externallyribbed transversely-split ring, for engaging with the shoulder on the tapering pipe, and thereby holding said pi pe-section coupled fast; and it consists further of an annularly-growed stud inserted through a side of the coupling.

and held therein so that it may he turned by a suitable key, said stud having on its end a camthat enters into an opening in the tapering ring, whereby said ring may be expanded to release the shoulder of the conical pipeand permit the uncoupling of the hose.

Figure l is a longitudinal sectional elevation of the, device on line 00 :r, Fig. 3. Fig. 2 is a plan ot'the coupling-ring. Fig. 3 is an end levation of the tapering ring with stud in position. Fig. 4 is a plan of the reverse of the stud. Fig. 5 is a perspective view of the tapering split ring.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the couplingring, internally screw-threaded, as shown at a, having a portion of its bore conical, as shown at b, and a portion straight, as shown at c. Said coupling-ring A has also an internal annular socket, d, occupying a place between the conical and straight portions 12 c of the bore, and in this socket d is an internally-tapering ring, B, transversely split, as shown at f, for the introduction of the cam end of the stud O, and provided externally with strengtheningribs g 9, that also serve to hold it in place.

A boss, h, is formed on the said coupling-ring A, and 1s bored through, as shown at m, to the stud G, which stud O is held in position by a key, 0, or other suitable device, that is passed transversely through said boss h in such a manner as to lie in the annular groove n of said stud G, and prevent its removal while it permits rotation. Said stud O has on its end, within the socket d, a cam 0, which, when it lies longitudinally in the split f of the ring B, permits saidring B to contract upon the tapering pipe E, and, by turning said stud G a qua-rter-way round, the earn 0 is brought transverselyin said split f, thereby expanding said ring B, so that its hold upon the pipe E is released, and the said pipe E may be uncoupled. This pipe E has a straight bore and is provided with an external taper, p, at one end, and in rear of the taper p with another tapering section, 1, both of which tapers,p q, incline in the same direction, so that at their point of junction a shoulder, s, is formed for the engagement ole material, set between the ends of the pipes E F, for the purpose of making a tightjoint.

I K represent, respectively, sections of hose secured upon the outer ends of the pipes E F.

The stud 0 being turned so that its cam 0 rests longitudinally in the splitf of the ring B, the device is ready for coupling. The tapering end of the pipe E is then inserted in the coupling-ring A, and, entering, presses said ring B apart until the shoulder s of said pipe E has passed beyond the thicker edgeof the ring B. Then said ring B contracts on the taper q, behind the shoulder s, and holds said pipe E coupled. To uncouple said pipe E, a screwdriver or'other suitable tool is applied in the nick r of the stud O, and said stud 0 thereby turned a quarter round, whereby the cam o is brought transversely in the slit f, and forces said ring B open, so that said pipe E can be uncoupled.

By this device hose or pipe can be coupled I and uncoupled more quickly and as securely as by any of the devices in general use, and. without the use of wrench, spanner, or any socket d, and in this bore m is inserted the 1 other special tool, a screw-driver, jack-knife,

or any tool that will enter the nick r of the stud 0 being the only instrument necessary.

y gHaving thus described my invention, I claim provided with annular socket d, stud-bore m, tapering split ring B, and stud (J, having end 15 cam, o, substantially as and for thepurpose described.

3. In a hose-coupling, the combination, with the coupling-ringA, provided with boss h, having a bore, m, of the stud 0, provided with an- 20 V nular groove n and cam 0, and key 0, substantially as herein shown and described.

' JOHN B. NEWMAN. Witnesses:

WILLIAM ANGLE, WILLIAM MITCHELL. 

